When three Texas Rangers try to investigate kidnapped Mexicans being used as forced labor in the mines of Silver Bullet, they are framed for murder by the town's corrupt sheriff.
William Boyd
as Hopalong Cassidy
Andy Clyde
as California Carlson
Jay Kirby
as Johnny Travers
Russell Simpson
as Orestes Krebs
Claudia Drake
as Inez LaBarca
George Reeves
as Don Enrique Perez
Robert Mitchum
as Quinn
Duncan Renaldo
as Commandante
Pierce Lyden
as Loren
Cliff Parkinson
as Barton
Victor Adamson
as Miner
Roy Bucko
as Wagon Driver